C22212323232133313113313331333132313231333132311233123112323213221   >>    C2221232323213331311331333133313231323133313231123312311232321322   <<    C22212323232133313113313331333132313231333132311233123112323213223   >>      C22212323232133313113313331333132313231333132311233123112323213222   >>